These may have been answered before but sometimes I need a little more clarification.
Here is what I was doing on a treadmil. 1min run with 2min fast walk. From the link posted in the HIIT thread I should be doing much shorter and more intense runs. Say maybe a 10 to 15 second sprint, but how much time before I sprint again? If I only wait 30 seconds or so before I spint again, I'll only be good for maybe 3 or 4 minutes. Is that long enough? Any suggestions on a routine for treadmil. BTW, I tried this last night and it seemed to work ok on the treadmil. I'll do it outside when the weather is a little better.
What about leg fatigue, heart rate, and resparitory rate. By the time I started the 3rd run, my legs were starting to burn, and my chest was pumping hard. Not to sound stupid, but is that what I am shooting for?
I'd take the approach of say a 15 second sprint then a 45 second rest. If you can only go a few minutes, that's fine-- make it a goal to add a minute the next workout, and build up to where you can go for longer periods.
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What I usually do is a 2 min warmup, then gradually increase every minute to get up to a full sprint, then go back to a light jog for another min, or so till I build up to a sprint;. This usually last for 18 min and my last 2 min is a cooldown which I start from a jog down to a walk.
I usually do this on a treadmill but also like doing it with the X-trainer as well or the bikes.
Thanks. tomorrow will be session #2. I'll see how it goes.